CN112537248A - Headlamp control system, method and vehicle - Google Patents
Headlamp control system, method and vehicle Download PDFInfo
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- CN112537248A CN112537248A CN201910830056.2A CN201910830056A CN112537248A CN 112537248 A CN112537248 A CN 112537248A CN 201910830056 A CN201910830056 A CN 201910830056A CN 112537248 A CN112537248 A CN 112537248A
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- vehicle
- front vehicle
- steering
- preceding vehicle
- headlamp
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
- B60Q1/076—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle by electrical means including means to transmit the movements, e.g. shafts or joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
- B60Q1/08—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/19—Controlling the light source by remote control via wireless transmission
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention provides a headlamp control system, a headlamp control method and a vehicle, wherein the system comprises: the vision module is used for acquiring the state of a steering lamp of a front vehicle; a communication module that acquires steering wheel angle information of a preceding vehicle by communicating with the preceding vehicle; and the control module is respectively connected with the vision module and the communication module, and is used for prejudging the steering of the front vehicle according to the state of a steering lamp of the front vehicle or the angle information of a steering wheel of the front vehicle and controlling the headlamp according to a prejudgment result so as to form a dark area at the position to be turned into of the front vehicle. The invention can effectively predict the steering of the front vehicle, form a dark space in advance at the position to be turned over of the front vehicle, avoid dazzling influence on the front vehicle with suddenly changed lanes and further improve the night driving safety.
Description
Technical Field
The invention relates to the technical field of vehicle lamp control, in particular to a headlamp control system, a vehicle and a headlamp control method.
Background
With the continuous improvement of the living standard of people, automobiles become a daily transportation tool for thousands of families. However, as the popularity of automobiles increases, the requirements for driving safety are also gradually increased, and particularly, at night, the driving safety is more difficult to guarantee. Therefore, in recent years, many lamp manufacturers and research institutes at home and abroad are beginning to focus on the research of the safety technology of automobiles in the field of lamp.
At present, with the large-scale entry of electronic technology into automobile safety applications, the safety technology of automobiles in the field of automobile lamps mainly relates to automobile headlamps with an ADB (Adaptive Driving Beam) function. The automobile headlamp with the ADB function detects whether a vehicle is in front of the vehicle through the visual module arranged at the front rearview mirror, so that under the working conditions of meeting and/or following the vehicle, LEDs (Light Emitting diodes) in different areas of the headlamp are controlled to be on and off, a dark area is formed at the position of the front vehicle, and the influence of dazzling on a driver of the front vehicle is avoided. Meanwhile, the automobile headlamp with the ADB function can keep the maximum light on the road surface, so that the maximum utilization rate of the light of the automobile headlamp at night is ensured.
However, since the control device of the automotive headlamp with the ADB function needs a certain time to process information in front of the vehicle, when the vehicle changes lanes suddenly, the headlamp of the vehicle is difficult to extinguish the light in the corresponding area in time, so as to cause short-time dazzling to the driver of the vehicle ahead, which easily causes the driver of the vehicle ahead to enter a blind-open state in a short time, and has a great driving safety hazard.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the art described above. Therefore, an object of the present invention is to provide a headlamp control system, which can effectively predict the steering direction of a vehicle ahead, form a dark space in advance at a position to be steered of the vehicle ahead, and avoid dazzling influence on the vehicle ahead with a sudden lane change, thereby improving the driving safety at night.
A second object of the invention is to propose a vehicle.
A third object of the present invention is to provide a headlamp control method.
In order to achieve the above object, a first embodiment of the present invention provides a headlamp control system, including: the vision module is used for acquiring the state of a steering lamp of a front vehicle; a communication module that acquires steering wheel angle information of the preceding vehicle by communicating with the preceding vehicle; the control module is respectively connected with the vision module and the communication module, and is used for prejudging the steering of the front vehicle according to the state of a steering lamp of the front vehicle or the angle information of a steering wheel of the front vehicle and controlling the headlamp according to a prejudgment result so as to form a dark space at a position to be steered of the front vehicle.
According to the headlamp control system provided by the embodiment of the invention, the steering lamp state of the front vehicle is acquired through the vision module, the steering wheel angle information of the front vehicle is acquired through the communication module, the steering of the front vehicle is pre-judged according to the steering lamp state of the front vehicle or the steering wheel angle information of the front vehicle through the control module, and the headlamp is controlled according to the pre-judgment result so as to form a dark space at the position to be turned of the front vehicle, so that the steering of the front vehicle can be effectively pre-judged, the dark space is formed at the position to be turned of the front vehicle in advance, the dazzling influence on the front vehicle with sudden lane change is avoided, and the night driving safety can be improved.
In addition, the headlamp control system proposed according to the above-mentioned embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, the communication module is a Zigbee module, and the Zigbee module is configured to communicate with the vehicle ahead within a preset distance.
Further, the head lamp includes a Light Emitting Diode (LED) lamp group, and the control module controls the corresponding LED lamps in the LED lamp group to turn off or reduce the brightness to form a dark area in the position to be shifted of the front vehicle.
Further, the control module includes: a CAN (Controller Area Network) transceiver connected to the vision module via a CAN bus; an MCU (micro controller Unit) chip connected with the communication module through a UART (Universal Asynchronous Receiver/Transmitter) bus; and the LED driving chip is connected with the MCU chip through a UART bus.
According to one embodiment of the present invention, the control module is configured to first pre-determine whether the preceding vehicle turns according to a turn lamp state of the preceding vehicle and control the headlamp to form a dark region at a to-be-steered position of the preceding vehicle when the steering of the preceding vehicle is pre-determined according to the turn lamp state of the preceding vehicle, and pre-determine whether the preceding vehicle turns according to steering wheel angle information of the preceding vehicle and control the headlamp to form a dark region at a to-be-steered position of the preceding vehicle when the steering of the preceding vehicle is not pre-determined according to the steering wheel angle information of the preceding vehicle.
In order to achieve the above object, an embodiment of a second aspect of the present invention provides a vehicle including the headlamp control system set forth in the embodiment of the first aspect.
According to the vehicle provided by the embodiment of the invention, by adopting the headlamp control system provided by the embodiment, the steering of the front vehicle can be effectively predicted, a dark zone is formed at the position to be turned of the front vehicle in advance, the dazzling influence on the front vehicle with sudden lane change is avoided, and the night driving safety can be improved.
To achieve the above object, a headlamp control method according to a third aspect of the present invention includes; acquiring the state of a steering lamp of a front vehicle; acquiring steering wheel angle information of the front vehicle; and pre-judging the steering of the front vehicle according to the state of a steering lamp of the front vehicle or the angle information of a steering wheel of the front vehicle, and controlling the headlamp according to a pre-judging result so as to form a dark area at the position to be steered of the front vehicle.
According to the headlamp control method provided by the embodiment of the invention, the steering lamp state of the front vehicle and the steering wheel angle information of the front vehicle are obtained, the steering of the front vehicle is pre-judged according to the steering lamp state of the front vehicle or the steering wheel angle information of the front vehicle, and the headlamp is controlled according to the pre-judgment result so as to form a dark space at the position to be turned into of the front vehicle, so that the steering of the front vehicle can be effectively pre-judged, the dark space is formed at the position to be turned into of the front vehicle in advance, the dazzling influence on the front vehicle with sudden lane change is avoided, and the night driving safety can be improved.
In addition, the headlamp control method proposed according to the above-described embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, the pre-judging the turn of the preceding vehicle according to the turn signal state of the preceding vehicle or the steering wheel angle information of the preceding vehicle and controlling the headlamp according to the pre-judging result to form a dark space at the to-be-turned-in position of the preceding vehicle specifically includes: firstly, pre-judging whether the front vehicle turns or not according to the state of a steering lamp of the front vehicle; controlling the headlamp to form a dark region at a to-be-steered position of the preceding vehicle when steering of the preceding vehicle is predicted according to a state of a steering lamp of the preceding vehicle; when the steering of the front vehicle is not pre-judged according to the state of a steering lamp of the front vehicle, pre-judging whether the front vehicle turns or not according to the steering wheel angle information of the front vehicle; controlling the headlamp to form a dark region at a to-be-steered position of the preceding vehicle when steering of the preceding vehicle is predicted according to steering wheel angle information of the preceding vehicle.
Drawings
FIG. 1 is a block schematic diagram of a headlamp control system according to an embodiment of the present invention;
fig. 2 is a circuit diagram of a Zigbee module according to an embodiment of the present invention;
FIG. 3 is a circuit diagram of a CAN transceiver in accordance with one embodiment of the present invention;
FIG. 4 is a circuit diagram of an MCU chip according to an embodiment of the present invention;
FIG. 5 is a circuit diagram of an LED driver chip according to an embodiment of the present invention;
fig. 6 is a flowchart of a headlamp control method according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a block diagram schematically illustrating a headlamp control system according to an embodiment of the present invention.
As shown in fig. 1, the headlamp control system according to the embodiment of the present invention includes a vision module 10, a communication module 20, and a control module 30. The vision module 10 is used for acquiring the state of a turn light of a front vehicle; the communication module 20 acquires steering wheel angle information of a preceding vehicle by communicating with the preceding vehicle; the control module 30 is connected to the vision module 10 and the communication module 20, respectively, and the control module 30 is configured to pre-judge a turning direction of the vehicle ahead according to a state of a turn signal of the vehicle ahead or steering wheel angle information of the vehicle ahead, and control the head lamp according to a pre-judgment result to form a dark area at a position to be turned of the vehicle ahead.
In one embodiment of the present invention, the head lamp includes LED lamp groups, and the control module 30 forms a dark area in a position to be shifted in the front vehicle by controlling the respective LED lamps in the LED lamp groups to be turned off or to be dimmed.
In one embodiment of the present invention, the vision module 10 may include a high definition camera and an image processor. The high-definition camera can be used for shooting images in real time, specifically shooting the front of the vehicle, inputting the shot images into the image processor, and the image processor can extract the state of the steering lamp of the front vehicle according to the input images.
In an embodiment of the present invention, the communication module 20 may be a Zigbee module, and the Zigbee module may be configured to communicate with a vehicle ahead within a preset distance to obtain steering wheel angle information of the vehicle ahead within the preset distance. The preset distance can be the farthest distance that light emitted by a headlamp of the vehicle can cause dazzling influence on a vehicle in front.
Specifically, the Zigbee module may send information in a directional manner, for example, send information requesting to establish a communication connection within a preset distance in front of the vehicle, when there is a vehicle within the preset distance in front of the vehicle, and after the Zigbee module of the vehicle receives the information requesting to establish a communication connection sent by the vehicle behind and agrees to establish a communication connection, the vehicle behind which sends information ahead and the vehicle ahead which receives the information and agrees to establish a communication connection may form a local area communication network through the Zigbee module, and the vehicle ahead may send the steering wheel angle information of the vehicle into the Zigbee module of the vehicle behind through the local area communication network.
In one embodiment of the present invention, the control module 30 may include a CAN transceiver, an MCU chip, and an LED driving chip, and the CAN transceiver may be connected to the vision module 10 through a CAN bus; the MCU chip can be connected with the communication module 20 through a UART bus; the LED driving chip can be connected with the MCU chip through a UART bus. The CAN transceiver is also connected with the MCU chip and CAN be used for receiving the steering lamp state of the front vehicle acquired by the vision module 10 and inputting the steering lamp state into the MCU chip; the MCU chip may be configured to receive a turn light state of the front vehicle input by the CAN transceiver and steering wheel angle information of the front vehicle acquired by the communication module 20, and determine steering of the front vehicle according to the input turn light state of the front vehicle and the steering wheel angle information of the front vehicle to generate a corresponding control signal, and input the generated control signal to the LED driving chip; the LED driving chip can be used for controlling corresponding LED lamps in the LED lamp group to be turned off or reducing the brightness according to the control signal input by the MCU chip so as to form a dark area in the position to be turned into of the front vehicle.
In one embodiment of the invention, the control module 30 pre-determines the steering of the preceding vehicle based on the turn signal status of the preceding vehicle in preference to pre-determining the steering of the preceding vehicle based on the steering wheel angle information of the preceding vehicle.
Specifically, the control module 30 may first pre-determine whether the front vehicle is turned according to the turn lamp state of the front vehicle and control the head lamp to form a dark space at the to-be-turned position of the front vehicle when the front vehicle is turned according to the turn lamp state of the front vehicle, and pre-determine whether the front vehicle is turned according to the steering wheel angle information of the front vehicle when the front vehicle is not turned according to the turn lamp state of the front vehicle and control the head lamp to form a dark space at the to-be-turned position of the front vehicle when the front vehicle is turned according to the steering wheel angle information of the front vehicle. For example, when the vision module 10 recognizes that the front vehicle turns on the left turn light, the information that the left turn light is turned on may be input to the control module 30, and the control module 30 predicts that the front vehicle is about to change lanes to the left and generates a corresponding control signal according to the input information, so as to control the headlamps to form a dark region at the left lane position where the front vehicle is about to change lanes; when the vision module 10 does not recognize that the front vehicle turns on the turn signal, the control module 30 may predict that the front vehicle is about to change to the right side and generate a corresponding control signal according to the steering wheel angle information of the front vehicle acquired by the communication module 20, for example, information that the steering wheel of the front vehicle has a large steering angle to the right, so as to control the headlamps to form a dark region at the right lane position where the front vehicle is about to change.
In an embodiment of the present invention, the Zigbee module may include a chip with a model number CC2530 shown in fig. 2, the CAN transceiver may include a chip with a model number TJA10141AT shown in fig. 3, the MCU chip may select a chip with a model number MC9S12G192-48Pin shown in fig. 4, and the LED driving chip may select a chip with a model number TPS92661 shown in fig. 5, wherein the CC2530 chip, the TJA10141AT chip, and the TPS92661 chip are all connected to the MC9S12G192-48Pin chip.
Further, as shown in fig. 2, 3, 4 and 5, the pins P0-4, P0-2 and P0-3 of the CC2530 chip are respectively connected with the pins PJ3, PS0 and PS1 of the MC9S12G192-48Pin chip, the pins RXD, TXD, nSTB, nERR and EN of the TJA10141AT chip are respectively connected with the pins PM0, PM1, PT4, PT3 and PT2 of the MC9S12G192-48Pin chip, and the pins TX, RX, CLK, SYNC and EN of the TPS92661 chip are respectively connected with the pins PS2, PS3, PS4, PS5 and PS6 of the MC9S12G192-48Pin chip.
Specifically, as shown in fig. 2 and 4, the P0-4, P0-2, and P0-3 pins of the CC2530 chip may be respectively and correspondingly connected to the PJ3, PS0, and PS1 pins of the MC9S12G192-48Pin chip through the UART bus, and the CC2530 chip may be further respectively and correspondingly connected to the RF-P and RF-N pins of the wireless transceiver through the RF-P and RF-N pins; as shown in fig. 3, the TXD pin of the TJA10141AT chip is connected to one end of a resistor R40, the RXD pin is connected to one end of a resistor R41, and the other ends of the resistor R40 and the resistor R41 are respectively connected to a power supply of-5V; as shown in fig. 5, the TX pin of the TPS92661 chip is connected to one end of a resistor R57, the RX pin is connected to one end of a resistor R58, and the other ends of the resistor R57 and the resistor R58 are both connected to + 5V.
The operation of the headlamp control system according to the embodiment of the present invention will be described with reference to the above-described structure, taking as an example that the preceding vehicle is about to change lanes to the left side.
In an embodiment of the present invention, referring to fig. 2 and 4, the Zigbee module may send information requesting to establish a communication connection to the wireless transceiver through RF-P and RF-N pins of the CC2530 chip, the wireless transceiver may send the received information requesting to establish a communication connection to a vehicle in a preset distance in front of the vehicle, so as to form a local communication network with the vehicle in the preset distance in front of the vehicle, when there is a vehicle in the preset distance in front of the vehicle, and the Zigbee module of the vehicle receives the information requesting to establish a communication connection sent by a rear vehicle through the wireless transceiver, and after agreeing to establish a communication connection, the rear vehicle sending information in front and the front vehicle receiving the information and agreeing to establish a communication connection may form a local communication network through the Zigbee module, the front vehicle may send the steering wheel angle information of the vehicle to the wireless transceiver of the rear vehicle through the local communication network in real time, then the angle information of the steering wheel of the front vehicle received by the rear vehicle can be input into an MCU chip through a TXD Pin of the CC2530 chip in the Zigbee module of the vehicle, namely an RXD0 Pin of the MC9S12G192-48Pin chip.
Meanwhile, referring to fig. 3 and 4, the vision module 10 may input the steering lamp status of the vehicle ahead acquired in real time to a CANH Pin and a CANL Pin of a TJA10141AT chip in a CAN transceiver through a CAN bus, and the CAN transceiver may input the received steering lamp status of the vehicle ahead to an MCU chip, i.e., an RXD2 Pin of an MC9S12G192-48Pin chip, through a TXD Pin of the TJA10141AT chip.
Further, referring to fig. 4 and 5, the MCU chip, that is, the MC9S12G192-48Pin chip, may first pre-determine the steering of the vehicle ahead according to the status of the turn lamp of the vehicle ahead input by Pin RXD2, if the vehicle ahead turns on the left turn lamp at this time, the MCU chip, that is, the MC9S12G192-48Pin chip, may pre-determine that the vehicle ahead is about to change lane to the left side according to the status of the turn lamp of the vehicle ahead input by Pin RXD2, that is, the information that the left turn lamp of the vehicle ahead is turned on, and generate a corresponding control signal according to the pre-determination result, and may input the control signal into the LED driving chip, that is, the Pin RXD of the TPS92661 chip, through Pin TXD1, and the LED driving chip, that is, that the TPS 92chip may control the corresponding LED lamps in the LED lamp group of the headlamp to go out or reduce the brightness according to the control signal input by Pin RXD; if the front vehicle does not turn on the left steering lamp at the moment, the MCU chip, namely the MC9S12G192-48Pin chip can prejudge that the front vehicle is about to turn left according to the steering wheel angle information of the front vehicle input by the RXD0 Pin, namely the information that the steering wheel of the front vehicle has a larger left steering angle, and simultaneously generate a corresponding control signal according to the prejudgment result, and the control signal can be input into the LED driving chip through the TXD1 Pin, namely the RXD Pin of the TPS92661 chip, and the LED driving chip, namely the TPS92661 chip can control the corresponding LED lamp in the headlamp LED lamp group to be turned off or reduce the brightness according to the control signal input by the RXD Pin, so that a dark area is formed at the left lane position where the front vehicle is about to turn.
According to the headlamp control system provided by the embodiment of the invention, the steering lamp state of the front vehicle is acquired through the vision module, the steering wheel angle information of the front vehicle is acquired through the communication module, the steering of the front vehicle is pre-judged according to the steering lamp state of the front vehicle or the steering wheel angle information of the front vehicle through the control module, and the headlamp is controlled according to the pre-judgment result so as to form a dark space at the position to be turned of the front vehicle, so that the steering of the front vehicle can be effectively pre-judged, the dark space is formed at the position to be turned of the front vehicle in advance, the dazzling influence on the front vehicle with sudden lane change is avoided, and the night driving safety can be improved.
The invention further provides a vehicle corresponding to the embodiment.
The vehicle provided by the embodiment of the invention comprises the headlamp control system provided by the embodiment, and the specific implementation mode of the vehicle can refer to the embodiment.
According to the vehicle provided by the embodiment of the invention, by adopting the headlamp control system provided by the embodiment, the steering of the front vehicle can be effectively predicted, a dark zone is formed at the position to be turned of the front vehicle in advance, the dazzling influence on the front vehicle with sudden lane change is avoided, and the night driving safety can be improved.
The invention further provides a headlamp control method corresponding to the headlamp control system provided by the embodiment.
As shown in fig. 2, the headlamp control method according to the embodiment of the present invention includes the steps of:
and S1, acquiring the state of the steering lamp of the front vehicle.
In one embodiment of the invention, the high-definition camera can be used for shooting images in real time, particularly shooting the front of a vehicle, the high-definition camera can be used for inputting the shot images into the image processor, and the image processor can be used for extracting the state of a turn light of the front vehicle according to the input images.
S2, steering wheel angle information of the preceding vehicle is acquired.
In an embodiment of the present invention, the Zigbee module may communicate with a vehicle ahead within a preset distance to obtain steering wheel angle information of the vehicle ahead within the preset distance, where the preset distance is a farthest distance at which light emitted from a headlamp of the vehicle may cause glaring effect on the vehicle ahead.
Specifically, the Zigbee module may send information in a directional manner, for example, send information requesting to establish a communication connection within a preset distance in front of the vehicle, when there is a vehicle within the preset distance in front of the vehicle, and after the Zigbee module of the vehicle receives the information requesting to establish a communication connection sent by the vehicle behind and agrees to establish a communication connection, the vehicle behind which sends information ahead and the vehicle ahead which receives the information and agrees to establish a communication connection may form a local area communication network through the Zigbee module, and the vehicle ahead may send the steering wheel angle information of the vehicle into the Zigbee module of the vehicle behind through the local area communication network.
And S3, pre-judging the steering of the front vehicle according to the steering lamp state of the front vehicle or the steering wheel angle information of the front vehicle, and controlling the front lamp according to the pre-judging result to form a dark area at the position to be steered of the front vehicle.
In one embodiment of the present invention, the turn of the front vehicle may be predicted according to the turn signal state of the front vehicle or the steering wheel angle information of the front vehicle through the MC9S12G192-48Pin chip, and the head lamp may be controlled according to the prediction result to form a dark area at the to-be-turned position of the front vehicle. Wherein the steering of the preceding vehicle is pre-determined in preference to the steering of the preceding vehicle based on the steering lamp state of the preceding vehicle.
Specifically, it is possible to first pre-determine whether the front vehicle is turning according to the turn lamp state of the front vehicle and control the head lamp to form a dark space at the to-be-turned position of the front vehicle when the front vehicle is turning according to the turn lamp state of the front vehicle is pre-determined, and pre-determine whether the front vehicle is turning according to the steering wheel angle information of the front vehicle when the front vehicle is not turning according to the turn lamp state of the front vehicle and control the head lamp to form a dark space at the to-be-turned position of the front vehicle when the front vehicle is turning according to the steering wheel angle information of the front vehicle is pre-determined, by the MC9S12G192-48Pin chip. For example, when the left turn lamp is turned on by the front vehicle, the front vehicle is predicted to change the lane to the left side according to the turning-on information of the left turn lamp through the MC9S12G192-48Pin chip, and a corresponding control signal is generated, so that the headlamp is controlled to form a dark area at the left lane position where the front vehicle is about to change; when the turn lamp is not turned on by the front vehicle, the MC9S12G192-48Pin chip can be used for prejudging that the front vehicle is about to change the lane to the right side and generating a corresponding control signal according to the steering wheel angle information of the front vehicle, for example, the information that the steering wheel of the front vehicle has a large steering angle to the right, so as to control the headlamp to form a dark zone at the right lane position where the front vehicle is about to change.
According to the headlamp control method provided by the embodiment of the invention, the steering lamp state of the front vehicle and the steering wheel angle information of the front vehicle are obtained, the steering of the front vehicle is pre-judged according to the steering lamp state of the front vehicle or the steering wheel angle information of the front vehicle, and the headlamp is controlled according to the pre-judgment result so as to form a dark space at the position to be turned over of the front vehicle.
In the present invention, unless otherwise expressly stated or limited, the terms "connected" and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A headlamp control system, comprising:
the vision module is used for acquiring the state of a steering lamp of a front vehicle;
a communication module that acquires steering wheel angle information of the preceding vehicle by communicating with the preceding vehicle;
the control module is respectively connected with the vision module and the communication module, and is used for prejudging the steering of the front vehicle according to the state of a steering lamp of the front vehicle or the angle information of a steering wheel of the front vehicle and controlling the headlamp according to a prejudgment result so as to form a dark space at a position to be steered of the front vehicle.
2. The headlamp control system of claim 1, wherein the communication module is a Zigbee module for communicating with the vehicle ahead within a preset distance.
3. The headlamp control system of claim 2 wherein the headlamp comprises a group of LED lights, and the control module is configured to turn off or dim the corresponding LED lights of the group of LED lights to form a dark area in the oncoming location of the leading vehicle.
4. The headlamp control system of claim 3, wherein the control module comprises:
the CAN transceiver is connected with the vision module through a CAN bus;
the MCU chip is connected with the communication module through a UART bus;
and the LED driving chip is connected with the MCU chip through a UART bus.
5. The headlamp control system according to any one of claims 1 to 4, wherein the control module is configured to first pre-determine whether the preceding vehicle turns according to a turn lamp state of the preceding vehicle and control the headlamp to form a dark region at the steered position of the preceding vehicle when the steering of the preceding vehicle is pre-determined according to the turn lamp state of the preceding vehicle, and pre-determine whether the preceding vehicle turns according to the steering wheel angle information of the preceding vehicle when the steering of the preceding vehicle is not pre-determined according to the turn lamp state of the preceding vehicle and control the headlamp to form a dark region at the steered position of the preceding vehicle when the steering of the preceding vehicle is pre-determined according to the steering wheel angle information of the preceding vehicle.
6. A vehicle characterized by comprising a headlamp control system according to any of claims 1-5.
7. A headlamp control method is characterized by comprising the steps of;
acquiring the state of a steering lamp of a front vehicle;
acquiring steering wheel angle information of the front vehicle;
and pre-judging the steering of the front vehicle according to the state of a steering lamp of the front vehicle or the angle information of a steering wheel of the front vehicle, and controlling the headlamp according to a pre-judging result so as to form a dark area at the position to be steered of the front vehicle.
8. The headlamp control method with a anticipation function according to claim 7, wherein the anticipating a turn of the preceding vehicle according to a turn signal state of the preceding vehicle or steering wheel angle information of the preceding vehicle, and controlling the headlamp according to an outcome of the anticipating to form a dark space at a to-be-turned-in position of the preceding vehicle specifically comprises:
firstly, pre-judging whether the front vehicle turns or not according to the state of a steering lamp of the front vehicle;
controlling the headlamp to form a dark region at a to-be-steered position of the preceding vehicle when steering of the preceding vehicle is predicted according to a state of a steering lamp of the preceding vehicle;
when the steering of the front vehicle is not pre-judged according to the state of a steering lamp of the front vehicle, pre-judging whether the front vehicle turns or not according to the steering wheel angle information of the front vehicle;
controlling the headlamp to form a dark region at a to-be-steered position of the preceding vehicle when steering of the preceding vehicle is predicted according to steering wheel angle information of the preceding vehicle.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910830056.2A CN112537248A (en) | 2019-09-04 | 2019-09-04 | Headlamp control system, method and vehicle |
| PCT/CN2020/088859 WO2021042753A1 (en) | 2019-09-04 | 2020-05-07 | Headlight control system and method, and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910830056.2A CN112537248A (en) | 2019-09-04 | 2019-09-04 | Headlamp control system, method and vehicle |
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| CN201910830056.2A Pending CN112537248A (en) | 2019-09-04 | 2019-09-04 | Headlamp control system, method and vehicle |
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| WO (1) | WO2021042753A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102007058637A1 (en) * | 2007-12-05 | 2009-06-10 | Valeo Schalter Und Sensoren Gmbh | Automatic dimmer controlling method for vehicle, involves evaluating output signals from sensor in roadway-lateral side area of overhauled vehicle for detection of overhauling vehicle |
| DE102010021320A1 (en) * | 2010-05-22 | 2011-11-24 | Hella Kgaa Hueck & Co. | Control unit and method for blinding vehicles during turning operations |
| CN103209861B (en) * | 2010-11-12 | 2015-06-10 | 丰田自动车株式会社 | Vehicular light distribution control system and vehicular light distribution control method |
| JP5808620B2 (en) * | 2011-09-06 | 2015-11-10 | 株式会社小糸製作所 | Vehicle headlamp device and vehicle headlamp control system |
| DE102014009254B4 (en) * | 2014-06-20 | 2019-11-14 | Audi Ag | Method for controlling a light distribution of a headlight of a vehicle |
| CN110356312A (en) * | 2018-09-30 | 2019-10-22 | 长城汽车股份有限公司 | Anti-glare control method, system and the vehicle of vehicle |
| CN109624832A (en) * | 2018-12-27 | 2019-04-16 | 侯力宇 | A kind of method and system of the anti-glare headlight of automobile intelligent |
| CN210881868U (en) * | 2019-09-04 | 2020-06-30 | 常州星宇车灯股份有限公司 | Headlamp control system and vehicle |
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